Looking for Wife of William Whitten Keen/Keene of Washington State

I have e-mails and message boards that name her as Jennie Pearl Rose Keen but census records and gravesite, show her name as Jenny C. Keene/Keen. Not sure if I have the right name or family in my records. I have born 18 Mar 1876, Maiden Springs, Tazewell County, Virginia. Died 25 Apr 1952, Centralia, Lewis Co., Washington. Does anyone have marriage or any record besides census for conformation?Are these the same person?